不要贪婪，也不要孤立。

We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.

Sometimes the questions are complicated and the answers are simple.

Start where you are, with what you have. Make something of it and never be satisfied.

身体是记忆的场所。

谦逊是科学家所能拥有的最大美德。

最好的水果来自热情、耐心和精准。